Ah, gotcha. Be careful with the muzzle crown.
I asked because the directions for J-B Bore Bright (which is basically a bore "Polisher") states, "Do not polish the chamber walls; a too-slick chamber will increase case thrust against the bolt and can damage the gun"
That agrees with what I've read several times in different places to avoid getting oil on the chamber walls. Oil there will reduce friction between the case and the chamber wall allowing the case (and the pressure that is pushing it backwards during recoil) to put more pressure against the bolt face.
I've never bothered avoiding getting oil on the chamber walls when I clean my gun under the assumption that a light coat of oil there will burn off quickly but when reloading ammo I do make sure to avoid any kind of lubricant on the cases since it might build up or last for more than just one or two rounds.
Anyway, thanks for the info and the clarification. I see what you mean now.
I asked because the directions for J-B Bore Bright (which is basically a bore "Polisher") states, "Do not polish the chamber walls; a too-slick chamber will increase case thrust against the bolt and can damage the gun"
That agrees with what I've read several times in different places to avoid getting oil on the chamber walls. Oil there will reduce friction between the case and the chamber wall allowing the case (and the pressure that is pushing it backwards during recoil) to put more pressure against the bolt face.
I've never bothered avoiding getting oil on the chamber walls when I clean my gun under the assumption that a light coat of oil there will burn off quickly but when reloading ammo I do make sure to avoid any kind of lubricant on the cases since it might build up or last for more than just one or two rounds.
Anyway, thanks for the info and the clarification. I see what you mean now.